angular-docs-cn/packages/core/test/change_detection/iterable.ts

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

import {getSymbolIterator} from '@angular/core/src/util/symbol';

export class TestIterable {
  list: number[];
  constructor() {
    this.list = [];
  }

  [getSymbolIterator()]() {
    return (this.list as any)[getSymbolIterator()]();
  }
}